package com.sky.service.admin.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.dto.PasswordEditDTO;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.admin.EmployeeMapper;
import com.sky.pojo.Employee;
import com.sky.result.PageResult;
import com.sky.service.admin.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import javax.annotation.Resource;
import java.time.LocalDateTime;

@Service
public class EmployeeServiceImpl  implements EmployeeService {

    @Resource
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();//

        //1、根据用户名查询数据库中的数据  select * from employee where username = #{username}
        Employee employee = employeeMapper.getByUsername(username); //

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }
        //3、返回实体对象
        return employee;
    }

    //新增员工
    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee =  new Employee();
      //对象属性拷贝
      BeanUtils.copyProperties(employeeDTO,employee);
      //补全实体类中的其他属性值
        //设置状态
        employee.setStatus(StatusConstant.ENABLE);
        //设置密码
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        //设置创建、修改时间
        // employee.setCreateTime(LocalDateTime.now());
        // employee.setUpdateTime(LocalDateTime.now());
        //设置当前记录创建人ID和修改人ID
        // employee.setCreateUser(BaseContext.getCurrentId());
        //TODO 后期需要更改为新建用户的ID
        // employee.setUpdateUser(10L);
        employeeMapper.save(employee);
    }

    //分页条件查询
    @Override
    public PageResult pageEmployee(EmployeePageQueryDTO employeePageQueryDTO) {
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
       Page<Employee> employeePage= employeeMapper.pageEmployee(employeePageQueryDTO.getName());
        return new PageResult(employeePage.getTotal(),employeePage.getResult());
    }

    //启用禁用员工账号
    @Override
    public void statusEmpData(Integer status, Long id) {
        //提高通用性，方便后期修改
        Employee employee = Employee.builder()
                .status(status)
                .id(id).build();
        employeeMapper.statusEmpData(employee);
    }

    @Override
    public Employee getById(Long id) {
        Employee employee = employeeMapper.getById(id);
        return employee;
    }

    @Override
    public void putEmployee(Employee employee) {
        // employee.setUpdateTime(LocalDateTime.now());
        // employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.statusEmpData(employee);
    }


}
